WD-2030 XXXX customer display
8
4. Display Module Interface
4.1 RS232 Specifications
Data transmission: Serial
Synchronization: Asynchronous
Handshaking: DTR / DSR
Signal level:
SPACE = +3 to +15 V (logic “0”)
Baud rates: 4800,9600,19200 or 115200 bps
Parity and bit length
None parity, 8 data bits or
Even parity, 7 data bits
Stop bits: 1 or more
Table 4-1
4.1.1 RS232 connector to PCB (CN1)
Type: RJ45/8P/8C
Pin assignment
No
Direction Function description
1,2
Vin - Power 5VDC or 9~45 VDC
3,4
GND - Signal ground
5 CTS From Printer to Display Printer ready signal
6 RTS From Display to PC/Host Display/Printer ready signal
7 RXD From PC/Host to Display Display/Printing data signal
8 TXD From Display to Printer Printer status data signal
Table 4-2
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